IAU and Sky & Telescope magazine (Roger Sinnott & Rick Fienberg)
Hydra
The Hydra
OriginAncient
AbbreviationHya
GenitiveHydrae
Pronunciation/ˈhaɪdrə/ genitive /ˈhaɪdriː/
HIGH-druh
LocationCelestial Equator
Primary StarAlphard (α Hya)
Right Ascention 9h 28m Declination -8° 40'
Martian Solar Lag δ(🜨→♂) +0.272 h (16.3 min)
Hydra represents the Lernaean Hydra, a reptilian monster so vile that even its breath and blood were highly poisonous. It had nine serpent heads, eight mortal and one immortal. Every time one was cut off two would grow in its place. Defeating the Lernaean Hydra was the second labor assigned to Hercules by King Eurystheus. In the marshes of Lerna, Hercules drew out the Hydra from its lair, and with his mighty club, bashed one of its heads in. In its place, two heads sprouted, just as mean and deadly as the original. He realized he would need to take a different approach. He had his nephew Iolaus quickly cauterize each stump after it was bashed in. This prevented the heads from growing back. Hercules did this with each of the mortal heads. He struck off the immortal head and buried it deep in the ground and placed a huge rock on top of it. With his second labor complete, he dipped the tips of his arrows into the blood of the Hydra, covering them with deadly poison. In a second myth involving Hydra, this constellation represents the snake that Corvus used in a lie to Apollo.
www.underthesky.com
Hydra as depicted by Johann Bayer in his Uranometria (1603). Source image provided by www.RareMaps.com — Barry Lawrence Ruderman Antique Maps Inc. Via www.underthenightsky.com.
←Hydra 740→
SolPhoDeiTerVenJovSat
1234
567891011
12131415161718
19202122232425
262728
1 Hydra 740 2 Hydra 740 3 Hydra 740 4 Hydra 740 5 Hydra 740 6 Hydra 740 7 Hydra 740 8 Hydra 740 9 Hydra 740 10 Hydra 740 11 Hydra 740 12 Hydra 740 13 Hydra 740 14 Hydra 740 15 Hydra 740 16 Hydra 740 17 Hydra 740 18 Hydra 740 19 Hydra 740 20 Hydra 740 21 Hydra 740 22 Hydra 740 23 Hydra 740 24 Hydra 740 25 Hydra 740 26 Hydra 740 27 Hydra 740 28 Hydra 740 1 Corvus 740 6 April 3003 7 April 3003 8 April 3003 9 April 3003 10 April 3003 11 April 3003 12 April 3003 13 April 3003 14 April 3003 15 April 3003 16 April 3003 17 April 3003 18 April 3003 19 April 3003 20 April 3003 21 April 3003 22 April 3003 23 April 3003 24 April 3003 25 April 3003 26 April 3003 27 April 3003 28 April 3003 29 April 3003 30 April 3003 1 May 3003 2 May 3003 3 May 3003 4 May 3003 5 May 3003
MS 347371 MS 347372 MS 347373 MS 347374 MS 347375 MS 347376 MS 347377 MS 347378 MS 347379 MS 347380 MS 347381 MS 347382 MS 347383 MS 347384 MS 347385 MS 347386 MS 347387 MS 347388 MS 347389 MS 347390 MS 347391 MS 347392 MS 347393 MS 347394 MS 347395 MS 347396 MS 347397 MS 347398 MS 347399 MD 357010 MD 357011 MD 357012 MD 357013 MD 357014 MD 357015 MD 357016 MD 357017 MD 357018 MD 357019 MD 357020 MD 357021 MD 357022 MD 357023 MD 357024 MD 357025 MD 357026 MD 357027 MD 357028 MD 357029 MD 357030 MD 357031 MD 357032 MD 357033 MD 357034 MD 357035 MD 357036 MD 357037 MD 357038 MD 357039